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Noise Eliminating Intercom

Noise Eliminating Intercom System

The bhi Noise Eliminating Intercom System enables clear voice communications from noisy environments. Using unique Digital Signal Processing (DSP) technology, unwanted background noise and interference is removed to leave clear speech.

The NEIS is suitable in a wide range of applications, where the noise of fans, motors, engines, air-conditioning, traffic etc, cause poor voice communications. The system is particularly useful for improving voice quality in medical treatment applications, especially radiotherapy, where voice communications from the bunker to the control room are greatly improved. The NEIS system consists of a robust, stylish desktop control unit with a “push to talk button”, connected to a remote “hands free” speaker unit with microphone assembly. Operation of the bhi intercom system is simple, connections being made via a single cat 5 data cable. The NEIS is pre-configured for optimum noise canceling, which is fully adaptive to changing environmental conditions.

Click for datasheet

Suitable applications: Hospital treatment rooms, Mining, Help Points, Transport, Refineries, Factories and buildings, drive thru’s, weigh bridges, car park entry systems, toll booths, door entry etc.


  • Noise reduction Up to 98%
  • Clear two-way voice communications
  • Easy to install modular system
  • Simple cat 5 cable connections
  • Stylish desktop console with “push to talk” function
  • Robust speaker unit with remote or integral microphone
  • On/off volume control switch
  • Pre-made connection cables available
  • Custom units and available for specific applications
  • Power supply, medical specification 12 VDC
  • Current consumption 300mA
  • Dims (WxDxH) Speaker unit 180 x 160 x 240mm
  • Dims (WxDxH) Control unit 150 x 220 x 70mm

Worldwide Medical Power supply

mike mono copy

Overhead microphone

The NEIS-RM noise eliminating intercom system comprises the following items:
NEIS-DU - Desk control unit with ptt
NEIS-SPKR - Microphone speaker unit
NEIS-MIC - Boom microphone assembly (connects to NEIS-SPKR)
NEIS-PSU- Medical Power supply (worldwide universal type)
User manual and installation guide
The system simply connects together using standard CAT 5 straight through data cable.

NEIS-RM System Price: Please contact us for price and delivery

Hospital/medical applications: A full installation and service back up option is available for customers who already have a TomoTherapy Hi-ART® System installed or who are going to have a system installed in the future. Please contact TomoTherapy Inc direct for more information. Upgrades for existing Hi-ART® systems are simple and easy to install with a minimum amount of disruption and down time.

The NEIS-RM intercom system is suitable for installation with all makes of machines and scanners.

The NEIS-RM intercom system is also available in the UK through our partners Oncology Systems Ltd or Excell Integrated Systems Ltd. Please visit their websites or contact them for more information.
Bespoke systems are also available. Please contact us to discuss your application, or request a quotation

Audio Demonstrations:

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CAT scanner treatment room (197Kb)

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Diesel engine (629Kb)


Click here for datasheet.

Click here for order form:

Requires Adobe AcrobatTM.

Click here for user manual

Click here for user manual- page order

Click here for NEIS install block diagram

Intercom positioning diagram Typical medical install

Troubleshooting guide

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